Szczegóły publikacji
Opis bibliograficzny
Preparation and physicochemical properties of $K_{0.5}Na_{0.5}NbO_{3}$ ceramics obtained using a modified wet chemistry method / Marta LUBSZCZYK, Tomasz BRYLEWSKI, Paweł RUTKOWSKI, Konrad ŚWIERCZEK, Andrzej Kruk // Materials Science and Engineering. B, Advanced Functional Solid-State Materials ; ISSN 0921-5107. — 2023 — vol. 288 art. no. 116135, s. 1-17. — Bibliogr. s. 16-17, Abstr. — Publikacja dostępna online od: 2022-11-23
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 143869 |
|---|---|
| Data dodania do BaDAP | 2022-11-29 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.mseb.2022.116135 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials Science and Engineering, B, Advanced Functional Solid-State Materials |
Abstract
A modified wet chemical method involving different chelating acids was applied to prepare a series of lead-free K0.5Na0.5NbO3 (KNN) piezoelectric ceramics. The microstructural, dielectric, spectral and ferroelectric properties of the obtained ceramics were investigated as part of a comparative study. Thermal characteristics specific to a phase transition were detected via high-temperature HT-XRD, FT-IR and EIS. The obtained sinters were dense and consisted of micro-sized grains. Sinters obtained from powders prepared from oxalic acid with the addition of tartaric acid exhibited lower dielectric constants and lower coercive field values than those synthesized using oxalic acid only (332 vs 399 and 10 vs 9.5 kV⋅cm−1, respectively) measured at room temperature. The KNN ceramics exhibited high conductivity (>10−3 S/cm at 600 °C), dielectric loss (∼200 at 1 kHz) and high remnant polarization (∼310−3 μC/cm2).
